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      <a href="/2015/07/26/缓存/memcached服务安装及使用/" title="memcached高速缓存服务安装及使用" itemprop="url">memcached高速缓存服务安装及使用</a>
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      <a href="https://wustrive2008.github.io" title="wustrive">wustrive</a>
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    <time datetime="2015-07-26T13:30:41.000Z" itemprop="datePublished">2015-07-26</time>
    更新日期:<time datetime="2016-11-05T18:14:33.000Z" itemprop="dateModified">2016-11-06</time>
    
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			<strong class="toc-title">文章目录</strong>
		<ol class="toc"><li class="toc-item toc-level-3"><a class="toc-link" href="#安装Memcached"><span class="toc-number">1.</span> <span class="toc-text">安装Memcached</span></a><ol class="toc-child"><li class="toc-item toc-level-4"><a class="toc-link" href="#request"><span class="toc-number">1.1.</span> <span class="toc-text">request</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#install"><span class="toc-number">1.2.</span> <span class="toc-text">install</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#start"><span class="toc-number">1.3.</span> <span class="toc-text">start</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#shutdown"><span class="toc-number">1.4.</span> <span class="toc-text">shutdown</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#test"><span class="toc-number">1.5.</span> <span class="toc-text">test</span></a></li><li class="toc-item toc-level-4"><a class="toc-link" href="#自动启动"><span class="toc-number">1.6.</span> <span class="toc-text">自动启动</span></a></li></ol></li></ol>
		</div>
		
		<h3 id="安装Memcached">安装Memcached</h3><h4 id="request">request</h4><ol>
<li>gcc</li>
</ol>
<p>yum install gcc</p>
<ol>
<li>libevent</li>
</ol>
<p>yum install libevent*</p>
<h4 id="install">install</h4><pre><code>./configure --with-libevent=/usr
<span class="built_in">make</span> &amp;&amp; sudo <span class="built_in">make</span> install
</code></pre><h4 id="start">start</h4><pre><code>sudo /usr/<span class="keyword">local</span>/bin/memcached -<span class="keyword">d</span> -<span class="keyword">m</span> 10 -<span class="keyword">u</span> root -<span class="keyword">l</span> 192.168.32.193 -p 12000 -c 256 -P /tmp/memcached.pid
</code></pre><p>-d选项是启动一个守护进程，<br>-m是分配给Memcache使用的内存数量，单位是MB，我这里是10MB，<br>-u是运行Memcache的用户，我这里是root，<br>-l是监听的服务器IP地址，如果有多个地址的话，我这里指定了服务器的IP地址192.168.0.200，<br>-p是设置Memcache监听的端口，我这里设置了12000，最好是1024以上的端口，<br>-c选项是最大运行的并发连接数，默认是1024，我这里设置了256，按照你服务器的负载量来设定，<br>-P是设置保存Memcache的pid文件，我这里是保存在 /tmp/memcached.pid</p>
<h4 id="shutdown">shutdown</h4><pre><code><span class="built_in">kill</span> <span class="string">'cat /tmp/memcached.pid'</span>
</code></pre><h4 id="test">test</h4><pre><code>telnet 192.168.32.193 12000
#基本协议
<span class="operator"><span class="keyword">set</span> key1 <span class="number">0</span> <span class="number">180</span> <span class="number">3</span>
abc
STORED
<span class="keyword">add</span> key1 <span class="number">0</span> <span class="number">180</span> <span class="number">3</span>
xyz
NOT_STORED
<span class="keyword">get</span> key1
<span class="keyword">VALUE</span> key1 <span class="number">0</span> <span class="number">3</span>
abc
<span class="keyword">END</span>
<span class="keyword">replace</span> key1 <span class="number">0</span> <span class="number">180</span> <span class="number">3</span>
xyz
STORED
<span class="keyword">get</span> key1
<span class="keyword">VALUE</span> key1 <span class="number">0</span> <span class="number">3</span>
xyz
<span class="keyword">END</span>
<span class="keyword">delete</span> key1
DELETED</span>
</code></pre><h4 id="自动启动">自动启动</h4><ol>
<li><p>启动脚本 存入/etc/init.d/memcached</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div></pre></td><td class="code"><pre><div class="line">#!/bin/sh   </div><div class="line">#   </div><div class="line"># memcached:    MemCached Daemon   </div><div class="line">#   </div><div class="line"># chkconfig:    - 90 25  </div><div class="line"># description:  MemCached Daemon   </div><div class="line">#   </div><div class="line"># Source function library.   </div><div class="line">. /etc/rc.d/init.d/functions   </div><div class="line">. /etc/sysconfig/network   </div><div class="line">#[ $&#123;NETWORKING&#125; = &quot;no&quot; ] &amp;&amp; exit 0  </div><div class="line">#[ -r /etc/sysconfig/dund ] || exit 0  </div><div class="line">#. /etc/sysconfig/dund   </div><div class="line">#[ -z &quot;$DUNDARGS&quot; ] &amp;&amp; exit 0  </div><div class="line">start()   </div><div class="line">&#123;   </div><div class="line">        echo -n $&quot;Starting memcached: &quot;  </div><div class="line">        daemon $MEMCACHED -u lbt -d -m 1024 -l 192.168.32.193 -p 12000 </div><div class="line">        echo   </div><div class="line">&#125;   </div><div class="line">stop()   </div><div class="line">&#123;   </div><div class="line">        echo -n $&quot;Shutting down memcached: &quot;  </div><div class="line">        killproc memcached   </div><div class="line">        echo   </div><div class="line">&#125;   </div><div class="line">MEMCACHED=&quot;/usr/local/bin/memcached&quot;  </div><div class="line">[ -f $MEMCACHED ] || exit 1  </div><div class="line"># See how we were called.   </div><div class="line">case &quot;$1&quot; in   </div><div class="line">  start)   </div><div class="line">        start   </div><div class="line">        ;;   </div><div class="line">  stop)   </div><div class="line">        stop   </div><div class="line">        ;;   </div><div class="line">  restart)   </div><div class="line">        stop   </div><div class="line">        sleep 3  </div><div class="line">        start   </div><div class="line">        ;;   </div><div class="line">    *)   </div><div class="line">        echo $&quot;Usage: $0 &#123;start|stop|restart&#125;&quot;  </div><div class="line">        exit 1  </div><div class="line">esac   </div><div class="line">exit 0</div></pre></td></tr></table></figure>
</li>
<li><p>执行以下命令   </p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div></pre></td><td class="code"><pre><div class="line">chkconfig  --add memcached </div><div class="line">chkconfig  --level 235  memcached  on</div></pre></td></tr></table></figure>
</li>
<li><p>测试使用</p>
<pre><code>chkconfig  --list | grep mem

/etc/rc.d/init.d/memcached  <span class="literal">start</span>  
/etc/rc.d/init.d/memcached  <span class="literal">stop</span>
/etc/rc.d/init.d/memcached  <span class="literal">restart</span>
或
<span class="keyword">service</span> memcached <span class="literal">start</span>
<span class="keyword">service</span> memcached <span class="literal">stop</span>
<span class="keyword">service</span> memcached <span class="literal">restart</span>
</code></pre></li>
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